Speaker: 

Dr. Meiyong LIAO, a Chief Researcher at National Institute for Material Science

Abstract:

Diamond is one of the most promising materials for fabricating reliable, high-performance microelectro-mechanical systems (MEMS). This is because of the remarkable properties of diamond. Diamond has the highest Young’s modulus known to man, has an ultra-wide bandgap (5.4 eV), and is resilient against chemicals and radiation. The high Young’s modulus allows the fabrication of high-frequency MEMS, and due to low mechanical losses, ultra-high quality factors desired for sensing applications can be obtained. In addition, the deep energy levels of impurities in diamond enable applications of temperatures over 500°C. In this seminar, Dr. Liao will report on single-crystal diamond (SCD) MEMS with ultra-high quality factors (> 10⁶) fabricated using the smart-cut method that he developed. Then, he will report on robust and high-performance all-electrical on-chip SCD MEMS by introducing a transduction scheme called self-sensing enhancing actuation with integrated actuation and sensing. In the last part of the seminar, he will discuss results obtained for high-temperature magnetic sensing with SCD MEMS.

Zoom:

 https://oist.zoom.us/j/96289625266?pwd=TFdtZmRqbG5HSUhCa0xseit5ellIZz09
Meeting ID: 962 8962 5266    Passcode: 313298